DC Digital First Comics Confusion

Ok... I've got some questions for the comic book fans out there who have been following DC a bit closer than I've been able to recently.

1) What DC titles are digital first? I've got Ame-Comi Girls, Batman Beyond Unlimited, Arrow, Smallville Season 11, and... what else?

2) How do I figure out which digital comics are included in a print version? There are a couple of the Ame-Comi Girl books with Atlantean characters, which means I may want to buy the print version, but I can't tell if they have been published yet or what issue to expect them in if they aren't published yet.